Numaligarh Refinery Limited (NRL), a public sector oil company operating a 3 MMTPA refinery in Assam's Golaghat district, is under the administrative control of the Union Ministry of Petroleum. Puri highlighted on X that, under the leadership of Prime Minister Narendra Modi, the Numaligarh Refinery Expansion Project is working to increase its refining capacity from 3 MMTPA to 9 MMTPA as part of India's accelerating journey towards energy self-sufficiency.

In May 2021, the Assam government raised its stake in the refinery from 12.35% to 26%, investing Rs 21.87 billion, which is the highest-ever investment by the state government in any public sector undertaking (PSU). NRL, being the largest of the four refineries operating in Assam, plays a significant role in the economic development of the state.